Table 2. Amounts (mg/L beer) of Free Phenolic Compounds Quantitated by HPLC-ESI-MS/MS in the Regular (PA100, PA95, and PA85) and in the Low Alcoholic (LA-PA100, LA-PA95, and LA-PA85) Craft Beers^a.

compound	PA100 (mg/L beer)	LA-PA100 (mg/L beer)	PA95 (mg/L beer)	LA-PA95 (mg/L beer)	PA85 (mg/L beer)	LA-PA85 (mg/L beer)
GA	0.13 ± 0.01b	0.12 ± 0.01*	0.11 ± 0.01b	0.08 ± 0.01*	0.12 ± 0.01a	0.11 ± 0.02
PCA	0.12 ± 0.01b	nd	0.31 ± 0.05b	0.44 ± 0.01	0.25 ± 0.01a	nd
CQA	<0.24#	<0.24#	<0.24#	<0.24#	<0.24#	<0.24#
pHBA	0.42 ± 0.02b	0.36 ± 0.02*	0.41 ± 0.01b	0.30 ± 0.03*	6.06 ± 0.06a	2.54 ± 0.25*
VA	1.04 ± 0.10b	1.13 ± 0.10	1.05 ± 0.10b	1.16 ± 0.10	0.77 ± 0.03a	0.84 ± 0.03
CA	nd	nd	0.11 ± 0.01b	nd	0.12 ± 0.02a	0.20 ± 0.02*
SyA	nq	nq	nq	nq	nq	nq
CuA	0.28 ± 0.04a	0.31 ± 0.03	0.42 ± 0.03b	0.43 ± 0.04	0.20 ± 0.02a	0.41 ± 0.02*
SA	0.78 ± 0.01b	0.62 ± 0.02*	0.77 ± 0.04b	0.72 ± 0.02	1.60 ± 0.01a	0.53 ± 0.02*
FA	1.16 ± 0.08a	1.27 ± 0.02	1.53 ± 0.10b	1.73 ± 0.10	0.75 ± 0.03a	1.28 ± 0.08*
Ru	0.65 ± 0.08a	0.46 ± 0.06	0.72 ± 0.10a	0.58 ± 0.07	0.68 ± 0.06a	<0.29#
Q	<0.23#	<0.23#	<0.23#	<0.23#	<0.23#	<0.23#
K	<0.06#	<0.06#	<0.06#	<0.06#	<0.06#	<0.06#
TA	4.58	4.27	5.32	5.44	10.55	5.91
TPC (GAE mg/L beer)	361.3 ± 10.2a§	386.5 ± 18.3a	454.5 ± 17.7b§	456.3 ± 14.0b	463.7 ± 14.5b§	450.5 ± 5.0b
AA (TE μmol/L beer)	747.9 ± 40a§	793.3 ± 10a	780.3 ± 15a§	819.7 ± 15ab	852.1 ± 15b§	800.3 ± 15ab

^aTA: total amount (mg/L beer) of free phenolic compounds for each regular and low alcoholic beer. Mean values ± SD from triplicate analysis PA with different letters within rows are significantly different (p < 0.05),* LA-PA significantly different from the corresponding PA (p < 0.05),^# LOQ previously reported.^33§TPC and AA of PA were previously published,³⁴ and they were reported herein for a direct comparison with LA-PA; nd = not detected; nq = not quantitated.